Oil-burner



H. E. HUNTER.

OIL BURNER.

APPLICATION FILED FEB.20. 1920.

Patented July 19, 1921.

FIGURE FIGURE mvemqa 4 ATTORNEY l porizing and burning UNITED STATES PATENT OFFICE.

HARRY a. nulvmaaor sA v JosacaLIFoaNIa.

era-BURN R.

To all whom z't mayconcem: a

Be itknown thatI, HARRY E. HUNTER, a citizen of the United States, and resident of San Jose, in the county of Santa Clara and State of California, have invented certain new and useful Improvements in Oil-Burners,.0f which the following is a specification.

My invention relates to a device for valarly those heavier oils like distillate.

It is the object of my invention to provide a device of the character indicated that will.

vaporize a higher percentage of the oil than those burners generally used; that consists of few partsythat is easily cleaned and kept in proper working order; that will be highly efiicient in its practical application; and that ingparts until a can beeasily andquickly started.

In the drawings:

Figure 1 is a side elevation of my improved burner. o

Fig. 2 is a plan v ewof the same.

Fig. 3 is a sectionalview on line 3- -3 of Fi 1. a

I ig. 4 is a sectional view on line 4-4 of Fi 1. l

eferring more particularly to the drawings, 1 indicates a tubular member of suitable length closed at each end with a plug as at 2 and 3 respectively to form a secondary vaporizing chamber 1' and having a depressed portion at 4 drained by pipe 5 provided with a suitable valve 6. Cast integrally with tubular portion 1 is a pan 7 having substantiall Y the same length as portion 1 and preferably extending a distance above the upper surface thereof as shown.

Interiorly threaded portions as S and 9 are formed upon the upper surface of tube 1 and communicating with the interior of said tube. 1

At 10 is shown a forwardly curved and laterally spreading hollow member fitted into portion 8 and carrying a horizontally disposed pipe 11 extending at right angles to tube 1 and forming a primary vaporizing chamber 11*. Pipe 11 is closed at one end by a plug as 12 and is fitted with a plug 13 at the other end through which passes an oil feed pipe 14, the latter being closed at its inner end 15 and supplied with oil from a source of supply not shown. In the upper surface of pipe 14 are formed a plurality of parallel slots as shown at 16.

fuel oils, and particu- 3 Specification of Letters Patent. Patented July 19, 1921. application filed -."February 20,. 1920. Serial In portion 9 is fitted a short pipe 17 carrying a cross pipe 18 lying parallel with the tube 1 and with its forward end directed toward member 10. In the forward end of pipe 18 is formed avalve seat 19 and in the rear end is threaded a plug 20, the latter supporting a valve stem 21 carrying a valve 22 normally spaced a short distance from seat 19 by a pin 23 set in stem 21 and engaging plug 2. Stem 21 is provided with a handle 24 and a collar 25 the latter engaging the outer end of plug 20. At 26 is shown a spring inserted between handle 24 and collar 25 on stem 21.

i The preferred method of starting the device is as follows. Aquantity of light oil as gasolene is fed into pipe 14 and connectquantity overflows into pan 7 past valve 22. The oil in pan? is then ignited thereby heating and vaporizing the oil in chamber 1*, the vapor generated igniting as it is dischargedpast valve 22. The flame thus formed heats members 1 -10 and 11 to a comparatively high temperature sothat the heavier oilcontinuously fed into pipe 14 under pressure is heated to the vaporizing point in that portion of pipe 14 within chamber 11 and is discharged therefrom through slots 16 into said chamber 11 to impinge against the heated walls thereof. The vapor formed in chamber 11 passes through parts 10-1-17 and 18 and is discharged through the space between seat 19 and valve 22 where it is burned.

The flame of the burning vapor plays upon members 110 and 11 thereby maintaining them in a heated condition to vaporize the oil continually fed thereinto, the oil being burned in pan 7 only for the purpose of starting the device.

That portion of the fuel oil which is imperfectly vaporized in chamber 11 follows down the walls of member 10 into chamber 1 and being continually subjected to a high degree of heat practically all of the same is perfectly vaporized efore it reaches valve 22. That small portion of the oil which cannot be vaporized is collected in depression 4 and pipe 5 and is drawn off from time to time through valve 6.

It is essential that the fuel be subjected to as large a heated surface as possible as it travels through the device, therefore I have widened out member 10 as shown at 27-28 so that the partially vaporized and unvaporized oil will "have the largest possible surface to flow over.

Even with the most perfectly vaporized fuels some solids will collect at the discharge point of'the burner and clog the passage wardly it increases the space vby pushing upon stem 21 through the medium of pin 23. 1f it jis'turned outwardly the space is reduced since spring 26 acts outwardly upon stem 21 and keep s pin 23 in contact with p g 20; a

It is understood, of course, that while I have herein shown' and described one specific embodiment'o'f my invention 1 do not wish to be conf ned tothe specific form shown but to include all changes in form, construction and method otoperatmnthat may be in a. eluded "within'the scope of the appended claims:

' 1. A' fuel oil'burner'including a secondary vaporizing"chamber, a fuel nozzle operativel yerected thereon in substantially parallel" relation 'Jthe'reto and .communieating therewith, primary vaporizing chamber erected thereon in angular relation thereto and communicatingtherewith, and an oil feed pipe operatively mounted in said primary vaporizing chamber and provided with a plurality of orifices in that portion thereof positioned within said chamber.

2. A fuel-oil burner including a secondary vaporizing chamber, a fuel nozzle opera- =tively ierected thereon in substantially parplurality of orifices in that portion thereof positioned within said chamber.

3. In a fueloil burner, a hollow substantially horizontally disposed cylinder having a removable closure in each end thereof, valve controlled draining means operatively connected to one-end thereof, a fuel nozzle operatively mounted on said cylinder and eommunicatin therewith and paralllelly disposed with relation to the axis thereof, a second cylinder arranged at right angles to said first mentioned cylinder a distance above the same and communicating therewith and within the field of operation of said nozzle, and an oil feed pipe operativel y mounted to inject fuel oil into said second mentioned cylinder.

HARRY HUNTER. 

